Simply fill in the Canonical URl field with the URL link to the original copy of the post (regardless of whether it is on your site or someone elses). Piece of cake!

When republishing the same piece on your own site over and over – such as with a monthly webinar announcement – it’s actually better to also use the “noindex” setting in addition. That tells Google to essentially skip over the piece and in that way only “see” the original in the SERPs.

Sometimes the announcements, schedules, etc that we publish routinely are for our readers… and very confusing to Google. Using canonical and (where appropriate) noindex will help Google understand.

There are other important uses for canonical at a site-wide level, however hopefully this post makes it easy for you to to understand the in-post settings and why they matter.

Canonical, with or without noindex, is your friend in minimizing duplicate content problems (some of which are inherent to WordPress and other CMS systems).